Exhaust injector-condenser



(N0 Modl.)

J. WHEELOGK. Exhaust Injector Condenser.

No. 242,089. Patented May 24,1881

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V UNITED STATES PATENT OFFICE.

EXHAUST. INJECTOR-CONDENSER.

SPECIFICATION formingpart of Letters Patent No. 242,089, dated May 24, 1881. Application filed March 21, 1881. (No model.)

To all whom it may concern:

Be it known that I, JEROME WHEELOOK, of the city and county of Worcester, in the State of Massachusetts, have invented certain new and useful Improvements in Exhaust Injector-Condensers for Steam-Engines 5 and 1 do hereby declare that the following specification, taken in connection with the drawings furnished and formin gapart of the same,is aclear, true, and complete description of myinvention.

In the operation of condensers of this class it frequently becomes desirable to permit the free exhaust from the engine unfettered by the throttling of the steam incident to exhaustcondensers as heretofore constructed, and during such times the Water in the hot-well becomes objectionably reduced in temperature, and the prime object of my improvement is to provide for heating water from the hot-well or other desirable source, on its way to the boiler, regardless of the operation of the injector-condenser, and incident to the attainment of that end I also, to a greater or lesser extent, reduce the work of condensation, which the injector has heretofore been wholly relied upon to perform,

Briefly stated, my invention consists in the combination, with the exhaust injector-condenser, of a stack or coil of water-pipe located within the uptake or exhaust-pipe of the condenser and communicating with the hot-welland boiler via the boiler-pump.

Iain,ofcourse,'wellawarethatexhaust-steain llas'heretofore been employed within apparatus of various kinds for heating feed-water for boilers, and it is to be understood that my said improvement is limited to an apparatus enibodying as a part thereof an exhaust injectorcondenser.

To more particularly describe my invention, I will refer to the accompanying drawings, illustratin g in section my improvements, as-embodied in what I recognize as a siphon-exhaust in jector-conden ser, in which the exhaust-steam from the cylinder A enters and passes upward within the uptake or exhaust-pipe B, thence curves over and downward, through, the injector (1, provided with a detachable nozzle, a, in accordance with an improvement heretofore patented by me, The lower end of the pipe b below the condenser enters the usual hotwell, (not shown,) or it may be located directly over, but above the mouth of said well, if desired. The water-pipe D at one endenters the hot-well below the water-line thereof and enters the exhaust-pipe B at its base through the base-plate 0, extends upward therein preferably to the height of the curve at its upper end, and thence is returned downward, either by a coil or in a straight line, and doubled on itselt'as many times as may be deemed desirable in each case, and finally leaves said exhaust-pipe at its base, and from thence extends to the boiler via the boiler pump. (Not shown.) Under all circumstances the feed-water on its way to the boiler is heated in its passage within the exhaust-pipe, and in proportion to the temperature of said water from the hot-well more or less condensation is effected within the'exhaust-pipe B, and I therefore prefer to provide a small pipe, d, which enters the foot of the exhaust-pipe through the base-plate c and communicates with the hot-well for the direct passage of such waters of condensation as may from time to time be developed by the low temperature of the feed-Water pipe D.

It will be seen that it the water-supply of the condenser G be at any time cut oil, or so far reduced in quantity as'to fail to maintain the water in the hot-well at a desirable temperature for feeding to the boiler-as, for instance, when it is desirable to permit free exhaust-nemrtheless by my construction the feed-water 011 its way to the boiler will be properly heated.

The internal dimensions of the exhaust-pipe B being proportionably spacious according to the bulk of the feed-water pipes D renders the latter no obstruction to a free exhaust, and the steam, being more or less reduced in temperature by said feed water pipe, is more readily further condensed at the condenser C than would be the caseif said feed-water pipes were not present. Although I have shown and prefer that the exhaust-pipe B be vertical in its position, it is obvious that it may be inclined or horizontal, and that the condenser may be variably arranged relatively to said 'pipe.

Having thus described my invention, Iclaim as new- The combination, with an exhaust injectorcondenser, of a coil of pipe within the exhaustpipe, traversed by the feed-water on its way from the hot-well or other source to the boiler, substantially as described.

JEROME WHEELOOK.

Witnesses:

' L. WESTERLUND, A. H. RAYNAL.

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